pre-deployment site surveys are performed by moving about a single
AP and testing coverage every time you change the AP location. This
method is often referred to as “AP-on-a-stick.” The purpose of this
method is to find good locations for future AP installations and to
estimate expected coverage (or, sometimes, to find the best
location for only one AP).
If you perform such surveys
using one floor plan, the results will not be ideal because
TamoGraph assumes that your AP location is fixed; it will place
only a single AP icon in the estimated location and the coverage
calculations will be based on that estimated location. This is not
what you want when you perform AP-on-a-stick surveys; you probably
want TamoGraph to treat your test AP as a unique physical device in
each of the surveys conducted.
To address this problem, we
suggest one of the following solutions (we recommend the second
1. You can add multiple copies
of the same floor plan to the project. Every time you move the test
AP to a new location, perform a survey using a new copy of the
floor plan. By doing so, you will obtain completely independent
coverage results for each new location. The drawback of this method
is that you will not be able to see cumulative coverage
visualization on a single floor plan.
2. You can perform all the surveys using the
same floor plan. During a typical “AP-on-a-stick” survey, you would
take the following steps:
a location for the future installation of your first AP.
your “AP-on-a-stick” in that location.
a single, full survey of the coverage area. If a single survey is
impossible (i.e., if you have to stop and make several surveys for
a single AP placement), be sure to merge such surveys before moving
a location for the future installation of your second AP and repeat
this cycle for the second, third, fourth, etc. AP.
When you have completed the
testing cycle (new AP location – new survey – new AP location – new
survey…), all of your surveys will contain data for only one AP
with a single MAC address. That is not what you want. What you want
is to split a single physical AP into multiple copies, one copy per
survey. All AP copies will be assigned new, unique MAC addresses,
and, therefore, TamoGraph will treat them as independent APs. To do
that, select your test AP on the left panel, right-click on it, and
then select Advanced
=> Split. This will display a dialog window in
which you can select two or more surveys that you performed using
the AP-on-a-stick method. Click OK to complete the operation. If you have a
dual-band AP, you will need to perform this split operation twice,
once for each band.
After the split, new APs are
given new names and new MAC addresses. For example, if the original
AP name is “Cisco 802.11n” and the original MAC address is
00:23:04:88:C6:90, and if your performed three surveys in three
different locations, the new APs would be named "Cisco 802.11n –
Copy 1," "Cisco 802.11n – Copy 2," and "Cisco 802.11n – Copy
3," and their MAC addresses would be 00:23:04:88:C6:91,
00:23:04:88:C6:92, 00:23:04:88:C6:93, respectively.
Once you split the AP into
multiple independent, unique APs, you can adjust AP icon locations
to reflect their actual positions, as described in the previous
chapter, and apply any visualization to the selected
Note that this operation cannot
be undone, so you may want to save a backup copy of the project
file prior to performing this operation.